JP6081596B2 - Beauty equipment - Google Patents

Description

  The present invention relates to a beauty device.

  As a beauty device described above, a skin beauty device has been proposed in which a vibrating part that vibrates is brought into contact with the skin and the skin is tapped, as in Patent Document 1. In the skin beauty device shown in Patent Document 1, since the vibration part is pressed against the skin, a force including a force component perpendicular to the vibration direction is applied to the vibration part. This force may cause the coil to roll in the magnetic gap (= swing in the width direction of the magnetic gap) and come into contact with the magnetic circuit. In order to solve this problem, in Patent Document 1, two dampers are used so that the coil does not roll.

JP 2005-7164 A

  However, in the above-described conventional example, in order to suppress the rolling of the coil, it is necessary to use two dampers, and an example is a problem that the size is increased.

  This invention makes it an example of a subject to cope with such a problem. That is, an object of the present invention is to provide a cosmetic device that suppresses rolling of a coil and is downsized, for example.

In order to solve the above-described problem, the beauty device according to claim 1 is a beauty device including a contact member that contacts the skin and a drive device that vibrates the contact member , wherein the drive device is magnetic. A magnetic circuit having a gap; a coil; a cylindrical support member that supports the coil; a connection member; and a damper, wherein the connection member includes a plate-like support portion that supports the support member; A cylindrical wall portion directed from the support portion toward the magnetic circuit side, an outer peripheral portion of the damper connected to the cylindrical wall portion, an inner peripheral portion of the damper connected to the magnetic circuit, and the damper The outer circumference of the coil is between the ends of the coil, the magnetic circuit includes a magnet, a plate and a yoke, one pole of the magnet is magnetically coupled to the plate, and the other pole of the magnet is Inner magnet type magnetically coupled to the yoke A circuit, the damper is connected to the yoke, in the non-driven state of the cosmetic device, the coil is characterized by being located outside the magnetic gap.

It is a side view which shows one Example of the beauty apparatus of this invention. It is the II sectional view taken on the line of FIG. It is a bottom view of the beauty apparatus shown in FIG. (A) is a schematic half sectional view of the cosmetic device shown in FIG. 1 in a non-driven state, and (B) is a schematic half cross section of the cosmetic device shown in FIG. 1 when the puff is inclined with respect to the height direction. (C) is a figure for demonstrating a motion of the coil bobbin which comprises each cosmetics apparatus shown in FIG. 1 when a non-driving state and a puff incline diagonally. (A) is a schematic half cross-sectional view of the cosmetic device in the comparative example in the non-driven state, and (B) is in the comparative example when the puff is inclined with respect to the height direction and the coil is in contact with the magnetic circuit. FIG. 6C is a schematic half sectional view of the beauty device, and FIG. 6C shows the movement of the coil bobbin constituting the beauty device in each comparative example when the puff is inclined and the coil is brought into contact with the magnetic circuit in the non-driven state. It is a figure for demonstrating. It is a schematic half sectional view of the beauty device in the non-driven state in another embodiment. It is a schematic half sectional view of the beauty device in the non-driven state in another embodiment. It is a schematic half sectional view of the beauty device in the non-driven state in another embodiment.

  Hereinafter, a beauty apparatus according to an embodiment of the present invention will be described. A cosmetic device according to an embodiment of the present invention includes a magnetic circuit including a magnetic gap, a coil driven by the magnetic circuit, a support member that supports the coil, a connection member that is connected to the support member, and a connection member And a contact member that vibrates due to the vibration of the support member, and a connecting portion between the damper and the coupling member is located at a height between both ends in the height direction of the coil.

  When a force including a component of force perpendicular to the height direction (= vibration direction) is applied to the contact member, the support member and the connecting member roll with the connecting portion between the damper and the connecting member as a fulcrum. In this embodiment, as described above, since the connection portion is located at the height between both ends in the height direction of the coil, the fulcrum can be disposed near the coil, and the coil can be laterally arranged without using a plurality of dampers. The shaking can be suppressed, and the beauty apparatus can be miniaturized.

  The inner periphery of the damper may be connected to a magnetic circuit. Thereby, a support member can be supported by a magnetic circuit so that vibration is possible.

  The magnetic circuit includes a magnet, a plate, and a yoke, and one pole of the magnet is magnetically coupled to the plate, and the other pole of the magnet is magnetically coupled to the yoke. It may be connected to the yoke. By using the inner magnet type magnetic circuit in this way, the beauty apparatus can be miniaturized.

  Moreover, in the non-driving state of the beauty device, a part or all of the coil may be located in the magnetic gap.

  Further, in the non-driven state of the beauty device, the center in the height direction of the coil may be located closer to the contact member than the center in the height direction of the magnetic gap. As a result, when the contact member is pressed against the skin in order to use the beauty device, the coil moves to the magnetic circuit side, and the center in the height direction of the coil approaches the center in the height direction of the magnetic gap. The coil can be driven efficiently when the beauty device is used.

  Moreover, the coil may be located outside the magnetic gap when the cosmetic device is not driven. Accordingly, when the contact member is pressed against the skin during use of the beauty device, the coil moves to the magnetic circuit side, the coil is disposed in the magnetic gap, and the coil can be driven by the magnetic circuit.

  Moreover, in the non-driving state of the beauty device, the connecting portion between the damper and the connecting member may be positioned at a height between both ends in the height direction of the magnetic gap.

  Moreover, in the non-driving state of the beauty apparatus, the connecting portion between the damper and the connecting member may be closer to the contact member than the center of the magnetic gap in the height direction.

  Moreover, in the non-driving state of the beauty apparatus, the connecting portion between the damper and the coupling member may be closer to the contact member than the contact member side end in the height direction of the magnetic gap.

  Moreover, in the non-driving state of the beauty device, the positions in the height direction of the inner peripheral portion of the damper and the outer peripheral portion of the damper may be different.

  The connecting member includes a plate-like support portion that supports the support member, and a cylindrical wall portion that is erected from the support portion toward the magnetic circuit side, and an outer peripheral portion of the damper is connected to the wall portion. May be. Thereby, the connection part of a damper and a connection member can be located in the height between the height direction both ends of a coil by simple structure.

  Moreover, the connection member may have rigidity more than a support member.

  Further, the connecting member may support the contact portion directly or via another member.

  Further, the connecting member and the contact member may be integrally formed.

  Further, the damper may be a butterfly damper in which a plurality of arm portions extend from the inner periphery to the outer periphery. Thereby, size reduction can be achieved.

  Further, in the non-driven state of the beauty device, the butterfly damper may be located at substantially the same height as the center of the coil in the height direction.

  A magnetic fluid may be disposed in the magnetic gap. This magnetic fluid can further prevent rolling in the magnetic gap of the coil.

  Further, in the state where the drive current flows through the coil, the amplitude at which the contact member vibrates may be varied according to the force applied to the contact member. Thereby, the amplitude of a contact member can be adjusted with the force added to a contact member.

  Further, in the state where the drive current flows through the coil, when no stress acts on the contact member, the contact member may be stationary. Thereby, when the contact member is not used, the contact member does not vibrate.

  Hereinafter, the beauty apparatus of this invention is demonstrated based on FIGS. 1-3. FIG. 1 is a side view showing an embodiment of the beauty apparatus of the present invention. 2 is a cross-sectional view taken along the line II of FIG. FIG. 3 is a bottom view of the beauty apparatus shown in FIG.

  As shown in the figure, the beauty device 1 includes a puff 2 as a contact member that comes into contact with the skin, and a drive device 3 that vibrates the puff 2 and taps the skin. The drive device 3 is accommodated in a case, but this case is omitted in FIGS.

  The driving device 3 includes a magnetic circuit 4 including a magnetic gap G, a coil bobbin 5 as a support member that supports a coil C driven by the magnetic circuit 4, a connecting member 6 connected to the coil bobbin 5, and a connecting member 6 And a butterfly damper 7 that supports the coil bobbin 5 via

  The magnetic circuit 4 is an internal magnetic circuit, and includes a magnet 41, a plate 42 in which one pole of the magnet 41 is magnetically coupled, a yoke 43 in which the other pole of the magnet 41 is magnetically coupled, Magnetic gap G. The magnet 41 is provided in a disk shape, and a through hole 41a is provided in the center. The plate 42 is provided in a disk shape, and overlaps the surface of the magnet 41 on the puff 2 side (= one pole side). The plate 42 is also provided with a through hole 42 a that overlaps the through hole 41 a of the magnet 41.

  The yoke 43 includes a bottom surface portion 43a that is superimposed on the surface of the magnet 41 that is away from the puff 2 (= the other pole side), and a cylindrical yoke body 43b that is erected from the outer edge of the bottom surface portion 43a toward the puff 2 side. And is composed of. A through hole 43 c that overlaps the through hole 41 a of the magnet 41 is provided in the bottom surface portion 43 a. By inserting poles (not shown) into the through holes 41a, 42a, and 43c of the magnet 41, the plate 42, and the yoke 43, the magnet 41, the plate 42, and the yoke 43 can be positioned and fixed. The yoke main body 43b extends to a position facing the plate.

  The magnetic gap G is a gap provided between the plate 42 and the yoke body 43b, and penetrates in the height direction Y1 of the coil C described later. The height direction Y1 of the coil C is the central axis direction of the coil C.

  The coil bobbin 5 is provided in a cylindrical shape, and a coil C is wound around the outer surface thereof. The coil C may be formed by winding a conductive wire around the coil bobbin 5 or may be provided by printing on the coil bobbin 5. The end of the coil bobbin 5 on the magnetic circuit 4 side is inserted from the opening on the puff 2 side of the magnetic gap G, and the coil C is disposed in the magnetic gap G. When the coil C is energized in this state, a force that vibrates in the height direction Y1 is generated in the coil C.

  The connecting member 6 is formed of a material having a rigidity equal to or higher than that of the coil bobbin 5 such as a resin, and has a plate-like support part 61 that supports a side of the coil bobbin 5 farther from the magnetic circuit 4 than the coil C, and a support part 61. And a cylindrical wall portion 62 erected toward the magnetic circuit 4 side. In this embodiment, as shown in FIG. 3, the support portion 61 is provided in a shape having rounded rectangular corners when viewed from the magnetic circuit 4 side, and is separated from the magnetic circuit 4 of the coil bobbin 5 as shown in FIG. An insertion hole 61a for inserting the end portion on the other side is provided.

  The end of the coil bobbin 5 on the side away from the magnetic circuit 4 is fixed to the inner peripheral surface of the insertion hole 61a by, for example, adhesion. Further, the puff 2 is directly supported on the surface of the support portion 61 on the side away from the magnetic circuit 4. The wall 62 is provided in a cylinder having a diameter substantially the same as the length in the short direction of the rectangular support 61 described above.

  The butterfly damper 7 has an outer peripheral portion 71 connected and fixed to the wall portion 62, and an inner peripheral portion 72 connected and fixed to the yoke body 43b. The butterfly damper 7 and the wall 62, and the butterfly damper 7 and the plate 42 are fixed using an adhesive or the like. The butterfly damper 7 is made of, for example, resin, and is provided with a ring-shaped inner peripheral portion 72, a ring-shaped outer peripheral portion 71, and an arm portion 73 extending from the inner peripheral portion 72 to the outer peripheral portion 71. . The butterfly damper 7 can support the coil C so as to vibrate in the height direction Y1.

  Next, the positional relationship among the above-described coil C, magnetic gap G, and butterfly damper 7 will be described with reference to FIG. 4A is a schematic half-sectional view of the beauty device shown in FIG. 1 in a non-driven state, and FIG. 4B is a view of FIG. 1 when the puff 2 is in contact with being inclined with respect to the height direction. It is a schematic half sectional view of the beauty apparatus 1 shown. In this figure, the coil C is omitted. FIG. 4C is a diagram for explaining the movement of the coil bobbin constituting the beauty device shown in FIG. 1 when the puff 2 is incliningly and in contact with the non-driven state. The coil bobbin 5 is shown by a solid line, and the coil bobbin 5 when the puff 2 is inclined is shown by a dotted line. Here, the non-driving state refers to a state where no driving current flows through the coil C and no stress is applied to the puff 2 (= a state where the puff 2 is not pressed against the skin).

  As shown in the figure, the connecting portion S between the butterfly damper 7 and the wall portion 62 described above is located at a height between both ends of the height direction Y1 of the coil C. The connecting portion S is a portion that rises from the wall portion 62 of the butterfly damper 7 and is a portion that serves as a fulcrum P for rolling described later.

  Further, all the coils C are located in the magnetic gap G when the beauty device 1 is not driven. More specifically, when the beauty device 1 is not driven, the center C1 of the coil C in the height direction Y1, the center C2 of the magnetic gap G in the height direction Y1, and the butterfly damper 7 are positioned at substantially the same height. doing. Naturally, when the beauty device 1 is not driven, the connecting portion S between the butterfly damper 7 and the wall portion 62 is also located at the height between both ends of the magnetic gap G in the height direction Y1.

  Next, operation | movement of the beauty apparatus 1 in the Example mentioned above is demonstrated. First, when a current is passed through the coil C, the coil C vibrates in the height direction Y1, and the puff 2 vibrates. In this state, when the puff 2 is brought into contact with the skin, the puff 2 taps the skin.

  At this time, if the puff 2 is in contact with the skin perpendicular to the height direction Y1, the coil C vibrates without tilting as shown in FIG. On the other hand, when the puff 2 is inclined with respect to the height direction Y1 and comes into contact with the skin, and a force having a force component perpendicular to the height direction is applied to the puff 2, as shown in FIG. The coil C tilts in the magnetic gap G. In the present embodiment, as described above, the connection portion S between the butterfly damper 7 and the wall portion 62 is positioned at the height between both ends in the height direction Y1 of the coil C, so that a plurality of dampers may not be used. The roll generated in the coil C can be suppressed, and the beauty device 1 can be downsized.

  The reason for this will be described in detail below. First, before describing this embodiment, a comparative example will be described with reference to FIG. FIG. 5 (A) is a schematic half sectional view of the cosmetic device in the comparative example in the non-driven state, and FIG. 5 (B) is the cosmetic device 1 in the comparative example when the puff 2 is inclined with respect to the height direction. FIG. In this figure, the coil C is omitted. FIG. 5C is a diagram for explaining the movement of the coil bobbin constituting the cosmetic device in each comparative example when the puff 2 is tilted obliquely in the non-driven state, and the coil bobbin 5 in the non-driven state is shown by a solid line. The coil bobbin 5 when the puff 2 is inclined obliquely is indicated by a dotted line.

  As shown in the figure, in the comparative example, unlike the present embodiment, the connecting member 6 is not provided, and the side of the coil bobbin 5 farther from the magnetic circuit 4 than the coil C is supported by the butterfly damper 7. As shown in FIG. 3C, when the force point E is on the puff 2 side of the coil bobbin 5 and the action point W is on the coil C, the connecting portion S between the butterfly damper 7 and the coil bobbin 5 is the fulcrum P. As shown in FIG. 5B, the force F applied to the force point E and inclined with respect to the height direction Y1 is a force component Fy1 parallel to the height direction Y1 and a force component Fx perpendicular to Fy1. have. When the force F including this Fx is applied to the force point E, the position of the force point E is displaced as shown by the dotted line in FIG. The action point W is displaced by the lever principle with the fulcrum P as a fulcrum. In the comparative example shown in FIG. 5, the coil C as the action point W and the connection portion S as the fulcrum P are arranged in the height direction Y1. Since the fulcrum P and the action point W are separated from each other, the displacement of the force point E is transmitted to the action point W. Then, as shown in FIG. 5B, the coil C may significantly roll in the magnetic gap G, and the coil C may contact a part of the magnetic circuit 4.

  On the other hand, in the present invention, the connection portion S is located at the height between both ends of the coil C in the height direction Y1. In the present invention, as in the comparative example, as shown in FIG. 4 (B), the force F tilted with respect to the height direction Y1 applied to the force point E is a force component Fy1 parallel to the height direction Y1, Fy1 has a normal force component Fx. When the force F including Fx is applied to the force point E, the position of the force point E is displaced as shown by a dotted line in FIG. However, in the present invention, as shown in FIG. 4C, the fulcrum P (= connection portion S) and the action point W (= coil C) are configured to have substantially the same height. Is not easily transmitted to the coil C which is the point of action W. For this reason, the rolling within the magnetic gap G of the coil C can be reduced as compared with the comparative example, and the coil C can be prevented from contacting a part of the magnetic circuit 4. In this case, it is desirable that the connecting member 6 is a member having rigidity equal to or higher than that of the coil bobbin 5. In this case, the wall portion 62 (portion including the fulcrum P) of the connecting member 6 and the coil bobbin 5 operate in substantially the same manner, and operate as if the fulcrum P is near the action point W.

  Further, according to the above-described embodiment, the inner peripheral portion 72 of the butterfly damper 7 is connected to the magnetic circuit 4. Thereby, the coil bobbin 5 can be supported by the magnetic circuit 4 so that it can vibrate.

  Further, according to the above-described embodiment, an internal magnet type magnetic circuit is used as the magnetic circuit 4. Thereby, size reduction can be achieved.

  Further, according to the above-described embodiment, the connecting member 6 includes the plate-like support portion 61 that supports the coil bobbin 5, and the cylindrical wall portion 62 that faces the magnetic circuit 4 from the support portion 61. An outer peripheral portion 71 of the damper 7 is connected to the wall portion 62. Thereby, the butterfly damper 7 and the connection part S can be positioned at the height between both ends of the height direction Y1 of the coil C with a simple configuration.

  Further, according to the above-described embodiment, it is possible to reduce the size by using the butterfly damper 7 as the damper.

  In addition, according to the Example mentioned above, although the butterfly damper 7 was used as a damper, it is not restricted to this. For example, a corrugation damper may be used.

  Moreover, according to the Example mentioned above, although the puff 2 was used as a contact member, it is not restricted to this. As the contact member, for example, a hard material such as resin may be used.

  Further, according to the above-described embodiment, the entire coil C is disposed in the magnetic gap G in the non-driven state of the beauty device 1, but this is not a limitation. For example, as shown in FIG. 6, only a part of the coil C may be disposed in the magnetic gap G when the beauty device 1 is not driven. In the embodiment shown in FIG. 6, the center C1 in the height direction Y1 of the coil C is located on the puff 2 side with respect to the center C2 in the height direction of the magnetic gap G. Further, the connection portion S between the butterfly damper 7 and the connecting member 6 is located on the puff 2 side with respect to the center C2 in the height direction of the magnetic gap G. Further, the connection portion S between the butterfly damper 7 and the connecting member 6 is located at a height between both ends of the coil C in the height direction Y1. As a result, when the puff 2 is pressed against the skin in order to use the beauty device 1, the coil C moves to the magnetic circuit 4 side, and the center in the height direction of the coil C and the center in the height direction of the magnetic gap G Approaches, and the coil C can be driven efficiently.

  In the embodiment shown in FIG. 6, only a part of the coil C is inserted into the magnetic gap G in the non-driven state. For this reason, when the puff 2 is applied to the skin, the length of the coil C inserted into the magnetic gap G depends on the pressing force applied to the puff 2. That is, when the puff 2 is strongly pressed against the skin, the length of insertion of the coil C into the magnetic gap G increases, and when the puff 2 is lightly pressed against the skin, the coil C is inserted into the magnetic gap G. The length is reduced. For this reason, when a drive current is passed through the coil C, the puff 2 is strongly pressed against the skin, and when the coil C is inserted into the magnetic gap G with a large length, the coil C has a large amplitude and the puff 2 When the insertion length is small, the coil C is small in amplitude. That is, the amplitude at which the puff 2 vibrates differs according to the force applied to the puff 2, and the user can use the cosmetic device 1 to adjust the amplitude of the puff 2 by the force applied to the puff 2.

  Further, according to the above-described embodiment, the entire coil C is located in the magnetic gap G in the non-driven state of the beauty device 1, but this is not a limitation. As shown in FIG. 7, the entire coil C may be disposed outside the magnetic gap G when the beauty device 1 is not driven. At this time, the connection portion S between the butterfly damper 7 and the connecting member 6 is located on the puff 2 side with respect to the end portion on the puff 2 side in the height direction Y1 of the magnetic gap G. Further, the connection portion S between the butterfly damper 7 and the connecting member 6 is located at a height between both ends of the coil C in the height direction Y1. Further, the positions of the outer peripheral portion 71 and the inner peripheral portion 72 of the butterfly damper 7 in the height direction are different.

  Accordingly, when the puff 2 is pressed against the skin in order to use the beauty device 1, the coil C moves to the magnetic circuit 4 side, and the coil C is disposed in the magnetic gap G to drive the coil C. it can. Moreover, by doing in this way, when the puff 2 is not pressed against the skin and the stress does not act, the coil C is outside the magnetic gap G, and the coil C is driven even if a drive current is supplied to the coil C. Therefore, when the puff 2 is not used, the puff 2 does not vibrate.

  Moreover, according to the Example mentioned above, although the puff 2 was directly mounted and supported by the support part 61 of the connection member 6, it is not restricted to this. As the connection member 6, you may make it support the puff 2 through another member.

  Moreover, according to the Example mentioned above, although the connection member 6 and the puff 2 were provided in the separate member, it is not restricted to this. If the contact member can be made of the same material as that of the connecting member 6, the connecting member 6 and the contact member may be formed integrally.

  Further, a magnetic fluid may be disposed in the magnetic gap G, and the rolling of the coil C in the magnetic gap G may be further prevented by the magnetic fluid.

  In the above-described embodiment, the wall 62 is provided outside the coil bobbin 5 and the butterfly damper 7 is connected to the wall 62. However, the present invention is not limited to this. As shown in FIG. 8, a pole-shaped wall portion 62 may be provided inside the coil bobbin 5, and the butterfly damper 7 may be connected to the wall portion 62.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

1 Beauty device 2 Puff (contact member)
4 Magnetic circuit 5 Coil bobbin (support member)
6 Connecting member 7 Butterfly damper (damper)
41 Magnet 42 Plate 43 Yoke 61 Support 62 Wall C Coil G Magnetic gap S Connection Y1 Height direction F Force applied to force point E

Claims (4)

A beauty device comprising a contact member that is brought into contact with the skin and a drive device that vibrates the contact member ,
The drive device includes a magnetic circuit having a magnetic gap, a coil, a cylindrical support member that supports the coil, a connecting member, and a damper.
The connection member includes a plate-like support portion that supports the support member, and a cylindrical wall portion that faces the magnetic circuit side from the support portion,
The outer periphery of the damper is connected to the cylindrical wall,
The inner periphery of the damper is connected to the magnetic circuit,
The height of the outer periphery of the damper is between both ends of the coil,
The magnetic circuit includes a magnet, a plate, and a yoke;
One pole of the magnet is magnetically coupled to the plate;
An inner magnet type magnetic circuit in which the other pole of the magnet is magnetically coupled to the yoke;
The damper is connected to the yoke;
In the non-driving state of the beauty device, the coil is located outside the magnetic gap . A beauty device comprising a contact member that is brought into contact with the skin and a drive device that vibrates the contact member ,
The drive device includes a magnetic circuit having a magnetic gap, a coil, a cylindrical support member that supports the coil, a connecting member, and a damper.
The connection member includes a plate-like support portion that supports the support member, and a cylindrical wall portion that faces the magnetic circuit side from the support portion,
The outer periphery of the damper is connected to the cylindrical wall,
The inner periphery of the damper is connected to the magnetic circuit,
The height of the outer periphery of the damper is between both ends of the coil,
The magnetic circuit includes a magnet, a plate, and a yoke;
One pole of the magnet is magnetically coupled to the plate;
An inner magnet type magnetic circuit in which the other pole of the magnet is magnetically coupled to the yoke;
The damper is connected to the yoke;
A beauty device characterized in that, in a non-driven state of the beauty device, the positions of the inner periphery of the damper and the outer periphery of the damper in the height direction are different . A contact member that contacts the skin, and a drive device that vibrates the contact member;
The drive device includes a magnetic circuit having a magnetic gap, a coil, a cylindrical support member that supports the coil, a connecting member, and a damper.
The connection member includes a plate-like support portion that supports the support member, and a cylindrical wall portion that faces the magnetic circuit side from the support portion,
The outer periphery of the damper is connected to the cylindrical wall,
The inner periphery of the damper is connected to the magnetic circuit,
The height of the outer periphery of the damper is between both ends of the coil,
The magnetic circuit includes a magnet, a plate, and a yoke;
One pole of the magnet is magnetically coupled to the plate;
An inner magnet type magnetic circuit in which the other pole of the magnet is magnetically coupled to the yoke;
The damper is connected to the yoke;
A cosmetic device, wherein a magnetic fluid is disposed in the magnetic gap . A contact member that contacts the skin, and a drive device that vibrates the contact member;
The drive device includes a magnetic circuit having a magnetic gap, a coil, a cylindrical support member that supports the coil, a connecting member, and a damper.
The connection member includes a plate-like support portion that supports the support member, and a cylindrical wall portion that faces the magnetic circuit side from the support portion,
The outer periphery of the damper is connected to the cylindrical wall,
The inner periphery of the damper is connected to the magnetic circuit,
The height of the outer periphery of the damper is between both ends of the coil,
The magnetic circuit includes a magnet, a plate, and a yoke;
One pole of the magnet is magnetically coupled to the plate;
An inner magnet type magnetic circuit in which the other pole of the magnet is magnetically coupled to the yoke;
The damper is connected to the yoke;
In a state where a drive current flows through the coil, the amplitude of vibration of the contact member differs according to the force applied to the contact member,
In a state in which a driving current flows through the coil, when no stress acts on the contact member, the contact member is stationary .

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